EP3399012A1 - Compositions détergentes liquides à rhéologie améliorée - Google Patents

Compositions détergentes liquides à rhéologie améliorée Download PDF

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Publication number
EP3399012A1
EP3399012A1 EP18154182.2A EP18154182A EP3399012A1 EP 3399012 A1 EP3399012 A1 EP 3399012A1 EP 18154182 A EP18154182 A EP 18154182A EP 3399012 A1 EP3399012 A1 EP 3399012A1
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EP
European Patent Office
Prior art keywords
detergent composition
liquid detergent
alkyl
octanol
mixtures
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP18154182.2A
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German (de)
English (en)
Inventor
Jean-Pol Boutique
Aicha Dkidak
Bill Karel Mahieu
Patrick Christopher Stenger
Denis Alfred Gonzales
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Procter and Gamble Co
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Procter and Gamble Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Procter and Gamble Co filed Critical Procter and Gamble Co
Priority to PCT/US2018/030755 priority Critical patent/WO2018204560A1/fr
Priority to US15/969,806 priority patent/US11634662B2/en
Publication of EP3399012A1 publication Critical patent/EP3399012A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66—Non-ionic compounds
    • C11D1/83—Mixtures of non-ionic with anionic compounds
    • C11D1/831—Mixtures of non-ionic with anionic compounds of sulfonates with ethers of polyoxyalkylenes without phosphates
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02—Anionic compounds
    • C11D1/37—Mixtures of compounds all of which are anionic
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66—Non-ionic compounds
    • C11D1/83—Mixtures of non-ionic with anionic compounds
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/88—Ampholytes; Electroneutral compounds
    • C11D1/94—Mixtures with anionic, cationic or non-ionic compounds
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/0008—Detergent materials or soaps characterised by their shape or physical properties aqueous liquid non soap compositions
    • C11D17/0026—Structured liquid compositions, e.g. liquid crystalline phases or network containing non-Newtonian phase
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2003—Alcohols; Phenols
    • C11D3/2006—Monohydric alcohols
    • C11D3/2017—Monohydric alcohols branched
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2003—Alcohols; Phenols
    • C11D3/2041—Dihydric alcohols
    • C11D3/2044—Dihydric alcohols linear
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2075—Carboxylic acids-salts thereof
    • C11D3/2086—Hydroxy carboxylic acids-salts thereof
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/37—Polymers
    • C11D3/3746—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C11D3/3757—(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/43—Solvents
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02—Anionic compounds
    • C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
    • C11D1/22—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aromatic compounds
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02—Anionic compounds
    • C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
    • C11D1/29—Sulfates of polyoxyalkylene ethers
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66—Non-ionic compounds
    • C11D1/72—Ethers of polyoxyalkylene glycols
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
    • C11D2111/10—Objects to be cleaned
    • C11D2111/12—Soft surfaces, e.g. textile

Definitions

  • Liquid detergent compositions especially liquid laundry detergent compositions having an improved rheology profile.
  • Liquid compositions particularly aqueous detergent compositions comprising appreciable amounts of surfactants may be difficult to formulate, given their tendency to split into two or more phases, such as one or more surfactant-rich phases and a water-rich phase. Further technical difficulties may arise when particulate matter is to be suspended in surfactant-containing liquid compositions as particulates have a tendency to rise to the top or to settle to the bottom of the composition over time. Yet consumers delight in fluid detergents offering stabilized particulate materials which can deliver improved cleaning performance, fabric care benefits, appearance benefits, and/or visual or aesthetic cues. Moreover, consumers typically prefer a higher, less waterlike viscosity, since such rheology profiles connote improved formula richness.
  • a higher viscosity improves pretreatment where the laundry detergent composition is applied directly onto the fabric, since a higher viscosity ensures that the composition remains in the vicinity of the stain.
  • HCO hydrogenated castor oil
  • Thixcin R® castor wax, trihydroxystearin
  • Thickeners such as polymeric thickeners, have also been used as rheology modifying agents. However, while such thickeners provide a higher viscosity, they typically do not provide sufficient low-shear viscosity to improve the phase stability of the composition or suspend particles.
  • US4561991A relates to stain removal compositions which comprise mixtures of grease-cutting solvents and polyamines for removing stains comprising a mixture of grease and particulate matter from fabrics.
  • WO 2012/117004 A2 and US 2012/0222348 A1 relate to C5-15-alkanols in foam inhibitors for biodiesel fuel or diesel fuel-biodiesel blends.
  • WO 94/11331 A1 relates to the use of an alkoxylate of 2-propyl-1-heptanol for degreasing.
  • EP 0666308 A2 relates to multi-purpose aqueous cleaning compositions comprising hydrogen peroxide, a 2-alkyl alkanol, a hydrophobic surfactant having an HLB below 14 and an anionic surfactant.
  • US 3,856,695 relates to solvent based detergent compositions which consist essentially of 10-80% liquid aliphatic chlorinated hydrocarbon solvents, 10-40% liquid aliphatic ketones and/or liquid aliphatic esters, 6 to 50% water soluble liquid alkanols having two to five carbon atoms and 1-10% surface active agents.
  • WO 98104761 relates to emulsions for cleaning, the emulsions containing water, one or more anionic surfactants from a group of selected molecular weight carboxylic acid salts, and one or more organic solvents so that the compositions have low conductivity and low viscosity.
  • US 5 968 888 A relates to a liquid crystal composition
  • a liquid crystal composition comprising a water insoluble organic compound, a nonionic surfactant, magnesium sulfate, a water soluble cosurfactant, an abrasive, an ethoxylated alkyl ether sulfate surfactant or alkyl sulfate surfactant, a fatty acid, a 2-alkyl alkanol and water.
  • EP 3170884 A1 relates to the use of an alcohol in a liquid cleaning composition comprising surfactant, for cleaning hydrophobic stains from surfaces and/or for providing suds longevity, wherein the alcohol is selected from the group consisting of: C4-C6 linear mono-alcohols, branched C4-C10 mono-alcohols having one or more C 1-C4 branching groups, alkyl mono-glycerols, and mixtures thereof.
  • the present invention relates to a liquid detergent composition
  • a liquid detergent composition comprising: detersive surfactant anionic surfactant, nonionic surfactant, zwitterionic surfactant, and combinations thereof; an external structurant or thickener, solvent selected from the group consisting of: C4-C10 alkyl branched alcohols, and mixtures thereof, wherein "C4-C10 alkyl” refers to the primary alkyl chain, and refers to the weight average alkyl chain length; and wherein the composition has a pH of less than 8.9.
  • the present invention further relates to a method of laundering fabric, comprising the steps of: providing a liquid detergent composition according to any preceding claim; adding the laundry detergent composition to an automatic laundry washing machine; adding fabric to the automatic laundry washing machine; and washing the fabric using a wash cycle having a duration of from 10 to 40 minutes, preferably from 15 to 25 minutes, preferably wherein the wash water is at a temperature of less than 40°C, preferably less than 30°C, more preferably less than 21°C.
  • the present invention further relates to the use of solvent selected from the group consisting of: C4-C10 alkyl branched alcohols, and mixtures thereof, for improving the rheology of a liquid detergent composition.
  • Liquid detergent compositions comprising an external structuring agent and/or a thickener, in combination with C4-C10 alkyl branched alcohols, and mixtures thereof, have been found to provide an improved rheology profile. Moreover, the C4-C10 alkyl branched alcohols have been found to improve the viscosity while not affecting the dispersibility of the liquid detergent composition. In addition, such compositions have been found to provide improved low shear viscosity, and hence, improved suspension of particulates and improved phase stability.
  • component or composition levels are in reference to the active portion of that component or composition, and are exclusive of impurities, for example, residual solvents or by-products, which may be present in commercially available sources of such components or compositions.
  • liquid detergent composition refers to liquid detergent composition which is fluid, and preferably capable of wetting and cleaning a fabric, e.g., clothing in a domestic washing machine.
  • laundry detergent composition refers to compositions suitable for washing clothes.
  • the composition can include solids or gases in suitably subdivided form, but the overall composition excludes product forms which are non-fluid overall, such as tablets or granules.
  • the liquid detergent composition preferably has a density in the range from 0.9 to 1.3 grams per cubic centimeter, more specifically from 1.00 to 1.10 grams per cubic centimeter, excluding any solid additives but including any bubbles, if present.
  • Aqueous liquid laundry detergent compositions are preferred.
  • the water content can be present at a level of from 5 % to 99 %, preferably from 15 % to 90 %, more preferably from 25 % to 80 % by weight of the liquid detergent composition.
  • the pH range of the detergent composition less than 8.9, preferably from 6.0 to 8.9, more preferably from pH 7 to 8.8. Such pH levels minimise fabric damage during pretreatment, especially for delicate fabrics and the colour of delicate fabrics.
  • Detersive surfactant as used herein means surfactants or mixtures of surfactants that provide cleaning, stain removing, or laundering benefit to soiled material. Suitable detersive surfactants are: anionic surfactant, nonionic surfactant, zwitterionic surfactant, and combinations thereof.
  • the surfactants are selected from the group consisting of: anionic surfactants, nonionic surfactants and combinations thereof.
  • the laundry composition can comprises detersive surfactant at a level of from 1 wt% to 70 wt%, preferably from 10 wt% to 50 wt%, more preferably from 15 wt% to 35 wt%.
  • Suitable anionic surfactants can be selected from the group consisting of: alkyl sulphates, alkyl ethoxy sulphates, alkyl sulphonates, alkyl benzene sulphonates, fatty acids and their salts, and mixtures thereof.
  • alkyl sulphates alkyl ethoxy sulphates
  • alkyl sulphonates alkyl benzene sulphonates
  • fatty acids and their salts and mixtures thereof.
  • anionic surfactant known in the art of detergent compositions may be used, such as disclosed in " Surfactant Science Series", Vol. 7, edited by W. M. Linfield, Marcel Dekker .
  • the composition preferably comprises at least a sulphonic acid surfactant, such as a linear alkyl benzene sulphonic acid, but water-soluble salt forms may also be used.
  • Alkyl ethoxy sulphates, or mixtures thereof are also preferred.
  • Anionic sulfonate or sulfonic acid surfactants suitable for use herein include the acid and salt forms of linear or branched alkylbenzene sulfonates, alkyl ester sulfonates, alkane sulfonates, alkyl sulfonated polycarboxylic acids, and mixtures thereof.
  • Suitable anionic sulfonate or sulfonic acid surfactants include: C5-C20 alkylbenzene sulfonates, more preferably C10-C16 alkylbenzene sulfonates, more preferably C11-C13 alkylbenzene sulfonates, C5-C20 alkyl ester sulfonates, C6-C22 primary or secondary alkane sulfonates, C5-C20 sulfonated polycarboxylic acids, and mixtures thereof, but preferably C11-C13 alkylbenzene sulfonates.
  • the aforementioned surfactants can vary widely in their 2-phenyl isomer content.
  • Anionic sulphate salts suitable for use in the compositions of the invention include the primary and secondary alkyl sulphates, having a linear or branched alkyl or alkenyl moiety having from 9 to 22 carbon atoms or more preferably 12 to 18 carbon atoms. Also useful are beta-branched alkyl sulphate surfactants or mixtures of commercial available materials, having a weight average (of the surfactant or the mixture) branching degree of at least 50%.
  • Mid-chain branched alkyl sulphates or sulfonates are also suitable anionic surfactants for use in the compositions of the invention.
  • Preferred are the C5-C22, preferably C10-C20 mid-chain branched alkyl primary sulphates.
  • a suitable average total number of carbon atoms for the alkyl moieties is preferably within the range of from greater than 14.5 to 17.5.
  • Preferred mono-methyl-branched primary alkyl sulphates are selected from the group consisting of the 3-methyl to 13-methyl pentadecanol sulphates, the corresponding hexadecanol sulphates, and mixtures thereof. Dimethyl derivatives or other biodegradable alkyl sulphates having light branching can similarly be used.
  • alkyl alkoxylated sulphates such as alkyl ethoxy sulphates (AES) and/or alkyl polyalkoxylated carboxylates (AEC).
  • AES alkyl ethoxy sulphates
  • AEC alkyl polyalkoxylated carboxylates
  • the alkyl alkoxylated sulphate surfactant is preferably a blend of one or more alkyl ethoxylated sulphates.
  • Suitable alkyl alkoxylated sulphates include C10-C18 alkyl ethoxylate, more preferably C12-C15 alkyl ethoxylate, with a degree of ethoxylation of from 1 to 5, preferably from 1.8 to 4.
  • anionic surfactants are typically present in the form of their salts with alkanolamines or alkali metals such as sodium and potassium.
  • the liquid detergent composition can comprise linear alkyl benzene sulfonate surfactant and alkyl alkoxylated sulphate surfactant, such that the ratio of linear alkyl benzene sulfonate surfactant to alkyl alkoxylated sulphate surfactant is from 0.1:1 to 5:1, preferably from 0.25:1 to 3:1, more preferably from 0.6:1 to 1.1:1.,
  • the liquid detergent composition can comprise nonionic surfactant.
  • the level of nonionic surfactant in the liquid detergent composition can be present at a level of less than 10 wt%, preferably less than 5 wt%, more preferably less than 1 wt%, most preferably less than 0.5 wt %.
  • Suitable nonionic surfactants include, but are not limited to C12-C18 alkyl ethoxylates ("AE") including the so-called narrow peaked alkyl ethoxylates and C6-C12 alkyl phenol alkoxylates (especially ethoxylates and mixed ethoxy/propoxy), block alkylene oxide condensate of C6-C12 alkyl phenols, alkylene oxide condensates of C8-C22 alkanols and ethylene oxide/propylene oxide block polymers (Pluronic - BASF Corp.), as well as semi polar nonionics (e.g., amine oxides and phosphine oxides) can be used in the present compositions.
  • AE C12-C18 alkyl ethoxylates
  • Alkylpolysaccharides such as disclosed in U.S. Pat. 4,565,647 Llenado are also useful nonionic surfactants in the compositions of the invention.
  • alkyl polyglucoside surfactants are also suitable.
  • Nonionic surfactants of use include those of the formula R 1 (OC 2 H 4 ) n OH, wherein R 1 is a C10-C16 alkyl group or a C8-C12 alkyl phenyl group, and n is from preferably 3 to 80.
  • the nonionic surfactants may be condensation products of C12-C15 alcohols with from 5 to 20 moles of ethylene oxide per mole of alcohol, e.g., C12-C13 alcohol condensed with 6.5 moles of ethylene oxide per mole of alcohol
  • Suitable amine oxide surfactants are amine oxides having the following formula : R 1 R 2 R 3 NO wherein R 1 is an hydrocarbon chain comprising from 1 to 30 carbon atoms, preferably from 6 to 20, more preferably from 8 to 16 and wherein R 2 and R 3 are independently saturated or unsaturated, substituted or unsubstituted, linear or branched hydrocarbon chains comprising from 1 to 4 carbon atoms, preferably from 1 to 3 carbon atoms, and more preferably are methyl groups.
  • R 1 may be a saturated or unsaturated, substituted or unsubstituted linear or branched hydrocarbon chain.
  • Suitable amine oxides for use herein are for instance preferably C 12 -C 14 dimethyl amine oxide, commercially available from Albright & Wilson, C 12 -C 14 amine oxides commercially available under the trade name Genaminox® LA from Clariant or AROMOX® DMC from AKZO Nobel.
  • Additional suitable nonionic surfactants include polyhydroxy fatty acid amides of the formula: wherein R is a C9-17 alkyl or alkenyl, R1 is a methyl group and Z is glycidyl derived from a reduced sugar or alkoxylated derivative thereof. Examples are N-methyl N-1-deoxyglucityl cocoamide and N-methyl N-1-deoxyglucityl oleamide. Processes for making polyhydroxy fatty acid amides are known and can be found in Wilson, U.S. Patent 2,965,576 and Schwartz, U.S. Patent 2,703,798 .
  • the liquid detergent composition can comprise a zwitterion.
  • the zwitterion can be present at a level of from 0.1 wt% to 5 wt%, preferably from 0.2 wt% to 2 wt%, more preferably from 0.4 wt% to 1 wt %.
  • Suitable amphoteric or zwitterionic detersive surfactants include those which are known for use in hair care or other personal care cleansing.
  • suitable zwitterionic or amphoteric surfactants are described in U.S. Pat. Nos. 5,104,646 (Bolich Jr. et al. ), 5,106,609 (Bolich Jr. et al. ).
  • Suitable amphoteric detersive surfactants include those surfactants broadly described as derivatives of aliphatic secondary and tertiary amines in which the aliphatic radical can be straight or branched chain and wherein one of the aliphatic substituents contains from 8 to 18 carbon atoms and one contains an anionic group such as carboxy, sulfonate, sulfate, phosphate, or phosphonate.
  • Suitable amphoteric detersive surfactants for use in the present invention include, but are not limited to: cocoamphoacetate, cocoamphodiacetate, lauroamphoacetate, lauroamphodiacetate, and mixtures thereof.
  • surfactants comprising saturated alkyl chains are used.
  • Suitable solvents are selected from the group consisting of: C4-C10 alkyl branched alcohols, and mixtures thereof. Such solvents have been found to improve the rheological profile of liquid detergent compositions. In addition, the solvents have been found to improve grease removal in detergent compositions when used during pretreatment of fabrics. Even more surprisingly, detergent compositions comprising such solvents have been found to improve grease removal even when during washing without pretreatment, and even when the solvents are present at low levels. Detergent compositions comprising such solvents are particularly effective at removing oils or grease which are at least partially naturally derived, such as animal fat, vegetable fat, and mixtures thereof, from fabrics.
  • C4-C10 alkyl refers to the primary alkyl chain, and refers to the weight average alkyl chain length.
  • Preferred C4-C10 alkyl branched alcohols are C4-C10 primary mono-alcohols having one or more C1-C4 branching groups, preferably selected from the group consisting of: methyl butanol, ethyl butanol, methyl pentanol, ethyl pentanol, methyl hexanol, ethyl hexanol, propyl hexanol, dimethyl hexanol, trimethyl hexanol, methyl heptanol, ethyl heptanol, propyl heptanol, dimethyl heptanol, trimethyl heptanol, methyl octanol, ethyl octanol, propyl octanol, buty
  • More preferred C4-C10 alkyl branched alcohols are C6-C8 alkyl branched alcohols, preferably selected from the group consisting of: methyl hexanol, ethyl hexanol, propyl hexanol, dimethyl hexanol, trimethyl hexanol, methyl heptanol, ethyl heptanol, propyl heptanol, dimethyl heptanol, trimethyl heptanol, methyl octanol, ethyl octanol, propyl octanol, butyl octanol, dimethyl octanol, trimethyl octanol, and mixtures thereof.
  • C6-C7 alkyl branched alcohols are especially preferred.
  • the solvent is selected from the group consisting of: 2-ethylhexanol, 3,5,5 -trimethyl-1-hexanol, 2-propylheptanol, and mixtures thereof.
  • the liquid detergent composition can comprise the solvent at a level of from 0.1 wt% to 10wt%, preferably from 0.3 wt% to 7.5 wt%, preferably from 0.5 wt% to 5 wt% of the solvent.
  • alkanolamines such as monoethanolamine and triethanolamine
  • alkali agents such as monoethanolamine and triethanolamine
  • neutralising agents for anionic surfactants and the like but not as solvents.
  • Preferred external structurants and thickeners are those that do not rely on charge - charge interactions for providing a structuring benefit.
  • particularly preferred external structurants are uncharged external structurants, such as those selected from the group consisting of: non-polymeric crystalline, hydroxyl functional structurants, such as hydrogenated castor oil; microfibrillated cellulose; uncharged hydroxyethyl cellulose; uncharged hydrophobically modified hydroxyethyl cellulose; hydrophobically modified ethoxylated urethanes; hydrophobically modified non-ionic polyols; and mixtures thereof.
  • Suitable non-polymeric crystalline, hydroxyl functional structurants are known in the art, and generally comprise a cystallizable glyceride which can be pre-emulsified to aid dispersion into the final liquid detergent composition.
  • a non-limiting example of such a pre-emulsified external structuring system comprises: (a) crystallizable glyceride(s); (b) anionic surfactant; and (c) water and optionally, non-aminofunctional organic solvents. Each of these components is discussed in detail below.
  • the preferred non-polymeric crystalline, hydroxy-functional structurant comprises a crystallizable glyceride, preferably hydrogenated castor oil or "HCO".
  • Suitable polymeric structurants include naturally derived and/or synthetic polymeric structurants.
  • Examples of naturally derived polymeric structurants of use in the present invention include: microfibrillated cellulose, hydroxyethyl cellulose, hydrophobically modified hydroxyethyl cellulose, carboxymethyl cellulose, polysaccharide derivatives and mixtures thereof.
  • microfibrillated cellulose are described in WO 2009/101545 A1 .
  • Suitable polysaccharide derivatives include: pectine, alginate, arabinogalactan (gum Arabic), carrageenan, gellan gum, xanthan gum, guar gum and mixtures thereof.
  • Examples of synthetic polymeric structurants or thickeners of use in the present invention include: polycarboxylates, hydrophobically modified ethoxylated urethanes (HEUr), hydrophobically modified non-ionic polyols and mixtures thereof.
  • HEUr hydrophobically modified ethoxylated urethanes
  • the polycarboxylate polymer is a polyacrylate, polymethacrylate or mixtures thereof.
  • the polyacrylate is a copolymer of unsaturated mono- or dicarbonic acid and 1-30C alkyl ester of the (meth) acrylic acid.
  • Such copolymers are available from Noveon inc under the tradename Carbopol Aqua 30.
  • Suitable polyacrylates include alkali swellable emulsion (ASE) thickeners and hydrophobically modified alkali sellable emulsion (HASE) thickeners.
  • ASE alkali swellable emulsion
  • HASE hydrophobically modified alkali sellable emulsion
  • HASE hydrophobically modified alkali swellable emulsions
  • HASE hydrophobically modified alkali swellable emulsions
  • Novethix L10 and Novethix HC200 are Novethix L10 and Novethix HC200 (Lubrizol), Crystasense Sapphire (Clariant), Alcoguard 5800 (Akzo Nobel), Rheosolve 637 and Rheosolve 650 (Coatex), Polygel W30 (3V Sigma), Capigel98 (SEPPIC), Jaypol AT4 (Ashland), Rheovis AT120, Salcare SC80 and Luvigel FIT (BASF).
  • the branched solvents of the present invention have been surprisingly found to synergistically improve both the viscosity and yield strength provided by the external structurant or thickener.
  • the branched alcohols have surprisingly been found to result in structuring in addition to thickening, when combined with polymeric thickeners.
  • the aqueous liquid detergent composition has a viscosity of 50 to 5,000, preferably 75 to 1,000, more preferably 100 to 500 mPa.s, when measured at a shear rate of 100 s-1, at a temperature of 20°C.
  • the aqueous liquid detergent composition has a viscosity of 50 to 250,000, preferably 5,000 to 125,000, more preferably 10,000 to 35,000 mPa.s, when measured at a shear rate of 0.05 s-1, at a temperature of 20°C.
  • the detergent composition may additionally comprise one or more of the following optional ingredients: enzymes, enzyme stabilizers, cleaning polymers, bleaching systems, optical brighteners, hueing dyes, particulate material, perfume and other odour control agents, hydrotropes, suds suppressors, fabric care benefit agents, pH adjusting agents, dye transfer inhibiting agents, preservatives, non-fabric substantive dyes and mixtures thereof.
  • the laundry detergent composition does not comprise a bleach.
  • Suitable cleaning polymers provide for broad-range soil cleaning of surfaces and fabrics and/or suspension of the soils. Any suitable cleaning polymer may be of use. Useful cleaning polymers are described in USPN 2009/0124528A1 . Non-limiting examples of useful categories of cleaning polymers include: amphiphilic alkoxylated grease cleaning polymers; clay soil cleaning polymers; soil release polymers; and soil suspending polymers.
  • the detergent composition may comprise amphiphilic alkoxylated grease cleaning polymers, which may have balanced hydrophilic and hydrophobic properties such that they remove grease particles from fabrics and surfaces.
  • the amphiphilic alkoxylated grease cleaning polymers may comprise a core structure and a plurality of alkoxylate groups attached to that core structure.
  • alkoxylated polyalkyleneimines may comprise alkoxylated polyalkyleneimines, for example.
  • Such compounds may comprise, but are not limited to, ethoxylated polyethyleneimine, ethoxylated hexamethylene diamine, and sulfated versions thereof. Polypropoxylated derivatives may also be included.
  • a wide variety of amines and polyalklyeneimines can be alkoxylated to various degrees. A useful example is 600g/mol polyethyleneimine core ethoxylated to 20 EO groups per NH and is available from BASF.
  • the alkoxylated polyalkyleneimines may have an inner polyethylene oxide block and an outer polypropylene oxide block.
  • Other suitable cleaning polymers include polyester based soil release polymers, such as SRA300, supplied by Clariant.
  • the detergent compositions may comprise from 0.1% to 10%, preferably, from 0.1% to 8%, more preferably from 0.1% to 6%, by weight of the detergent composition, of alk
  • the liquid detergent composition can comprise from 0.1% to 7%, more preferably from 0.2% to 3%, of a polymer deposition aid.
  • polymer deposition aid refers to any cationic polymer or combination of cationic polymers that significantly enhance deposition of a fabric care benefit agent onto the fabric during laundering.
  • Suitable polymer deposition aids can comprise a cationic polysaccharide and/or a copolymer.
  • Fabric care benefit agent refers to any material that can provide fabric care benefits.
  • Non-limiting examples of fabric care benefit agents include: silicone derivatives, oily sugar derivatives, dispersible polyolefins, polymer latexes, cationic surfactants and combinations thereof.
  • the deposition aid is a cationic or amphoteric polymer.
  • the cationic charge density of the polymer preferably ranges from 0.05 milliequivalents/g to 6 milliequivalents/g.
  • the charge density is calculated by dividing the number of net charge per repeating unit by the molecular weight of the repeating unit. In one embodiment, the charge density varies from 0.1 milliequivalents/g to 3 milliequivalents/g.
  • the positive charges could be on the backbone of the polymers or the side chains of polymers.
  • Organic builder and/or chelant can comprise from 0.6% to 10%, preferably from 2 to 7% by weight of one or more organic builder and/or chelants.
  • Suitable organic builders and/or chelants are selected from the group consisting of: MEA citrate, citric acid, aminoalkylenepoly(alkylene phosphonates), alkali metal ethane 1-hydroxy disphosphonates, and nitrilotrimethylene, phosphonates, diethylene triamine penta (methylene phosphonic acid) (DTPMP), ethylene diamine tetra(methylene phosphonic acid) (DDTMP), hexamethylene diamine tetra(methylene phosphonic acid), hydroxy- ethylene 1,1 diphosphonic acid (HEDP), hydroxyethane dimethylene phosphonic acid, ethylene di-amine di-succinic acid (EDDS), ethylene diamine tetraacetic acid (EDTA), hydroxyethylethylenediamine triacetate (HEDTA), n
  • Enzymes provide cleaning performance and/or fabric care benefits.
  • suitable enzymes include, but are not limited to, hemicellulases, peroxidases, proteases, cellulases, xylanases, lipases, phospholipases, esterases, cutinases, pectinases, keratanases, reductases, oxidases, phenoloxidases, lipoxygenases, ligninases, pullulanases, tannases, pentosanases, malanases, ß-glucanases, arabinosidases, hyaluronidase, chondroitinase, laccase, and known amylases, or combinations thereof.
  • a preferred enzyme combination comprises a cocktail of conventional detersive enzymes such as protease, lipase, cutinase and/or cellulase in conjunction with amylase.
  • detersive enzymes are described in greater detail in U.S. Patent No. 6,579,839 .
  • Enzyme stabiliser Enzymes can be stabilized using any known stabilizer system such as calcium and/or magnesium compounds, boron compounds and substituted boric acids, aromatic borate esters, peptides and peptide derivatives, polyols, low molecular weight carboxylates, relatively hydrophobic organic compounds [e.g., calcium and/or magnesium compounds, boron compounds and substituted boric acids, aromatic borate esters, peptides and peptide derivatives, polyols, low molecular weight carboxylates, relatively hydrophobic organic compounds [e.g., calcium and/or magnesium compounds, boron compounds and substituted boric acids, aromatic borate esters, peptides and peptide derivatives, polyols, low molecular weight carboxylates, relatively hydrophobic organic compounds [e.g., calcium and/or magnesium compounds, boron compounds and substituted boric acids, aromatic borate esters, peptides and peptide derivatives, polyols, low molecular weight carboxylate
  • esters diakyl glycol ethers, alcohols or alcohol alkoxylates], alkyl ether carboxylate in addition to a calcium ion source, benzamidine hypochlorite, lower aliphatic alcohols and carboxylic acids, N,N-bis(carboxymethyl) serine salts; (meth)acrylic acid-(meth)acrylic acid ester copolymer and PEG; lignin compound, polyamide oligomer, glycolic acid or its salts; poly hexa methylene bi guanide or N,N-bis-3-amino-propyl-dodecyl amine or salt; and mixtures thereof.
  • the detergent composition may comprise fabric hueing agent (sometimes referred to as shading, bluing, or whitening agents). Typically the hueing agent provides a blue or violet shade to fabric. Hueing agents can be used either alone or in combination to create a specific shade of hueing and/or to shade different fabric types. This may be provided for example by mixing a red and green-blue dye to yield a blue or violet shade.
  • fabric hueing agent sometimes referred to as shading, bluing, or whitening agents.
  • Hueing agents can be used either alone or in combination to create a specific shade of hueing and/or to shade different fabric types. This may be provided for example by mixing a red and green-blue dye to yield a blue or violet shade.
  • Hueing agents may be selected from any known chemical class of dye, including but not limited to acridine, anthraquinone (including polycyclic quinones), azine, azo (e.g., monoazo, disazo, trisazo, tetrakisazo, polyazo), including premetallized azo, benzodifurane and benzodifuranone, carotenoid, coumarin, cyanine, diazahemicyanine, diphenylmethane, formazan, hemicyanine, indigoids, methane, naphthalimides, naphthoquinone, nitro and nitroso, oxazine, phthalocyanine, pyrazoles, stilbene, styryl, triarylmethane, triphenylmethane, xanthenes and combinations thereof.
  • acridine e.g., monoazo, disazo, trisazo, tetrakisazo, polyazo
  • the detergent composition may comprise, based on the total detergent composition weight, from 0.005 to 2 %, preferably 0.01 to 0.1 % of a fluorescent agent (optical brightener).
  • fluorescent agents are well known and many fluorescent agents are available commercially. Usually, these fluorescent agents are supplied and used in the form of their alkali metal salts, for example, the sodium salts.
  • Preferred classes of fluorescent agent are: Di-styryl biphenyl compounds, e.g. Tinopal (Trade Mark) CBS-X, Di-amine stilbene di-sulphonic acid compounds, e.g. Tinopal DMS pure Xtra and Blankophor (Trade Mark) HRH, and Pyrazoline compounds, e.g. Blankophor SN.
  • Preferred fluorescers are: sodium 2-(4-styryl-3-sulfophenyl)-2H-napthol[1,2-d]trazole, disodium 4,4'-bis ⁇ [(4-anilino-6-(N methyl-N-2 hydroxyethyl) amino 1 ,3,5-triazin-2-yl)]amino ⁇ stilbene-2-2' disulfonate, disodium 4,4'-bis ⁇ [(4-anilino-6-morpholino-1 ,3,5-triazin-2-yl)]annino ⁇ stilbene-2-2' disulfonate, and disodium 4,4'-bis(2-sulfoslyryl)biphenyl.
  • the detergent composition may comprise, based on the total detergent composition weight, from 0 to 30%, preferably from 0.5 to 5%, more preferably from 1.0 to 3.0%, which can prevent liquid crystal formation.
  • the addition of the hydrotrope thus aids the clarity/transparency of the composition.
  • Suitable hydrotropes comprise but are not limited to urea, salts of benzene sulphonate, toluene sulphonate, xylene sulphonate or cumene sulphonate.
  • the hydrotrope is selected from the group consisting of propylene glycol, xylene sulfonate, ethanol, and urea to provide optimum performance.
  • the composition can also comprise particles.
  • the composition may comprise, based on the total composition weight, from 0.02% to 10%, preferably from 0.1% to 4%, more preferably from 0.25% to 2.5% of particles.
  • Said particles include beads, pearlescent agents, microcapsules, and mixtures thereof.
  • Suitable capsules are typically formed by at least partially, preferably fully, surrounding a benefit agent with a wall material.
  • the capsule is a perfume capsule, wherein said benefit agent comprises one or more perfume raw materials.
  • the capsule wall material may comprise: melamine, polyacrylamide, silicones, silica, polystyrene, polyurea, polyurethanes, polyacrylate based materials, polyacrylate esters based materials, gelatin, styrene malic anhydride, polyamides, aromatic alcohols, polyvinyl alcohol, resorcinol-based materials, poly-isocyanate-based materials, acetals (such as 1,3,5-triol-benzene-gluteraldehyde and 1,3,5-triol-benzene melamine), starch, cellulose acetate phthalate and mixtures thereof.
  • the capsule wall comprises melamine and/or a polyacrylate based material.
  • the perfume capsule may be coated with a deposition aid, a cationic polymer, a non-ionic polymer, an anionic polymer, or mixtures thereof.
  • the perfume capsules have a volume weighted mean particle size from 0.1 microns to 100 microns, preferably from 0.5 microns to 60 microns.
  • the composition can additionally comprise one or more formaldehyde scavengers.
  • the laundry detergent compositions can be made using any suitable process known to the skilled person.
  • the ingredients are blended together in any suitable order.
  • the detersive surfactants are added as part of a concentrated premix, to which are added the other optional ingredients.
  • the solvent is added before the external structurant and/or thickener is added, with the external structurant being added as the last ingredient.
  • the laundry detergent compositions of the present invention can be used to launder fabrics.
  • the laundry detergent composition can be diluted to provide a wash liquor having a total surfactant concentration of greater than 300 ppm, preferably from 400 ppm to 2,500 ppm, more preferably from 600 ppm to 1000 ppm.
  • the fabric can then be washed in the wash liquor, and preferably rinsed.
  • the fabrics are preferably washed in automatic laundry washing machines. Since the compositions of the present invention are more readily dispersed, the compositions are more suitable for use in short cycles having a duration of from 10 to 40 minutes, or even from 15 to 25 minutes.
  • the pH is measured, at 25°C, using a Santarius PT-10P pH meter with gel-filled probe (such as the Toledo probe, part number 52 000 100), calibrated according to the instructions manual.
  • the viscosity is measured using an AR 2000 rheometer from TA instruments using a cone and plate geometry with a 40 mm diameter and an angle of 1°.
  • the viscosity at the different shear rates is measured via a logarithmic shear rate sweep from 0.1 s -1 to 1200 s -1 in 3 minutes time at 20°C.
  • Low shear viscosity is measured at a continuous shear rate of 0.05 s -1 .
  • liquid detergent compositions were prepared by simple mixing, with examples 1a to 3a and Aa to Ca comprising no external structurant or thickener, examples 1b to 3b and Ab to Cb comprising hydrogenated castor oil (HCO) as a structurant, and examples 1c to 3c and Ac to Ac comprising Rheovis AT120 as a thickener.
  • examples 1a to 3a, 1b to 3b, and 1c to 3c were of the invention, while examples Aa to Ca, Ab to Cb, and Ac to Cc were comparative: Ex. 1a Ex. 2a Ex. 3a Ex. Aa* Ex. Ba* Ex.
  • Examples 4 to 9 are non-limiting embodiments of the present invention. Percentages are by weight unless otherwise specified. Ex. 4 Ex. 5 Ex. 6 Ex. 7 Ex. 8 Ex. 9 wt% wt% wt% wt% wt% wt% C12-14 EO3 alkyl ethoxylated sulfate 9.8 4.0 0.6 7.1 9.1 3.4 C12-15 linear alkylbenzene sulfonic acid 14.5 9.2 5.9 10.8 6.9 4.6 C12-15 EO8 ethoxylated alcohol 2.0 4.0 3.0 7.0 6 4.6 Dodecydimethylamine-N-oxide 0 0.5 0 0 0 0 Citric Acid 4.8 2.8 1.9 2.8 3.3 2.2 C12-18 Fatty Acid 3.3 1.7 1.2 4.7 4.9 1.6 Sodium Cumene Sulfonate 0 1.7 0.2 0 0 0 Zwitterionic polyamine 1 0.7 0.7 0.3 0 0 0 0 Diethylene

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US11028342B2 (en) * 2017-12-05 2021-06-08 Henkel IP & Holding GmbH Use of an ionic liquid and alcohol blend to modify the rheology of polyethoxylated alcohol sulfates
IT201900000502A1 (it) * 2019-01-11 2020-07-11 Deco Ind S Coop P A Composizione anticalcare per lavatrice
US11098271B2 (en) * 2019-06-12 2021-08-24 Henkel IP & Holding GmbH Salt-free structured unit dose systems
EP3805346B1 (fr) * 2019-10-08 2024-08-14 The Procter & Gamble Company Procédé de lavage de tissu
WO2021108307A1 (fr) * 2019-11-27 2021-06-03 The Procter & Gamble Company Tensioactifs alkylbenzènesulfonate améliorés
US11447722B2 (en) * 2020-01-30 2022-09-20 Henkel Ag & Co. Kgaa Detergent composition for textile softening and anti-redeposition
US11453842B2 (en) * 2020-03-06 2022-09-27 Henkel Ag & Co. Kgaa Use of filler blend to reduce turbidity and discoloration of unit dose detergent composition
UY39211A (es) * 2020-05-11 2021-12-31 Suzano Sa Agente estabilizador de suspensión
CA3200157A1 (fr) * 2021-04-29 2022-11-03 Marco Caggioni Premelanges structurants et compositions liquides comprenant ceux-ci

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